Evan M. Smith specializes in diamond geology.

Brendan Hoare specializes in mantle geochronology and geochemistry.

Rachelle Turnier specializes in colored gemstone geochemistry

Bassoo specializes in Understanding the spatial distribution and geological causes of defects in green diamonds

无论在什么地方，只要能通过互联网登入“我的鉴定所”，您就可以即时查看和管理您的宝石工作状态。这个全天候安全门户网站提供有关您物品的最新信息以及其他宝贵资源。

A native of Kenya, Susie Kennedy teamed up with her husband in the 1990s to establish their place in the gem industry.

了解一种可以更简单快捷地验证多个证书并访问多个 PDF 证书文件的方法。

For more than two decades, former plumber, welder and jewelry store-owner Dyber has been dazzling the world with his brilliant stone carvings ranging from sizes that fit in the palm of the hand to 12-lb quartz behemoths that can dominate a room.

Reserve your guided museum tour today at GIA and enjoy a unique immersive experience!

查看更新的鉴定所注意事项。

GIA Diamond Focus® Report（钻石精要证书）是高性价比的分级证书，以数字化格式提供特定天然钻石（未处理、颜色为 D 到 Z 、重量为 0.15 至 0.39 克拉）的关键分级信息。